Volume 69, Issue 2, November 2023, Pages 222–237
Gerald Fediny Yamando1 and Hervé Ndaye Mudumbi2
1 College of Petroleum Engineering, University of Petroleum-Beijing, Beijing 102249, China
2 College of Safety and Ocean Engineering, University of Petroleum-Beijing, Beijing 102249, China
Original language: English
Copyright © 2023 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Oil production in unconsolidated reservoirs such as sandstone can be really challenging because of solids coming from the formation. In order to solve problems caused by produced solids, frac-packing is one of the methods used. It aims to maintain or increase production and control produced solids. This research focuses on the hydraulic fracturing part of that method. A numerical model is created using CMG-2015 with data from a given field to analyze the effects of some factors on oil production. Two cases are considered in this research, the first one is a one-layer case and the second one is a two layers case. Water is injected into the reservoirs in both cases. The results reveal that formation damage by its degree (Ks/K) and size can significantly decrease oil production and fracturing treatment can help recover the oil production to almost the initial value. After bypassing the damaged area, keeping increasing fracture half-length and conductivity is not important because there is no significant effect on the production. The results also show that for double layers case, the best way to increase oil production is to fracture the low permeability layer and maintain or leave the formation damage that will naturally happen.
Author Keywords: Formation damage, Water Injection, Hydraulic Fracturing, Fracture parameters, Sensitivity Analysis.
Gerald Fediny Yamando1 and Hervé Ndaye Mudumbi2
1 College of Petroleum Engineering, University of Petroleum-Beijing, Beijing 102249, China
2 College of Safety and Ocean Engineering, University of Petroleum-Beijing, Beijing 102249, China
Original language: English
Copyright © 2023 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Oil production in unconsolidated reservoirs such as sandstone can be really challenging because of solids coming from the formation. In order to solve problems caused by produced solids, frac-packing is one of the methods used. It aims to maintain or increase production and control produced solids. This research focuses on the hydraulic fracturing part of that method. A numerical model is created using CMG-2015 with data from a given field to analyze the effects of some factors on oil production. Two cases are considered in this research, the first one is a one-layer case and the second one is a two layers case. Water is injected into the reservoirs in both cases. The results reveal that formation damage by its degree (Ks/K) and size can significantly decrease oil production and fracturing treatment can help recover the oil production to almost the initial value. After bypassing the damaged area, keeping increasing fracture half-length and conductivity is not important because there is no significant effect on the production. The results also show that for double layers case, the best way to increase oil production is to fracture the low permeability layer and maintain or leave the formation damage that will naturally happen.
Author Keywords: Formation damage, Water Injection, Hydraulic Fracturing, Fracture parameters, Sensitivity Analysis.
How to Cite this Article
Gerald Fediny Yamando and Hervé Ndaye Mudumbi, “Numerical simulation on the effects of fracture parameters on oil and water production in unconsolidated reservoirs,” International Journal of Innovation and Scientific Research, vol. 69, no. 2, pp. 222–237, November 2023.
